Well, the Hijri date 21 Shaban 1431 corresponds to the Gregorian date Monday, 2 August 2010. This date lies in the eighth month of the Hijri year 1431 AH, which is Shaban of 1431 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1431/08/21 is calculated using the Umm Al-Qura calendar and the sighting of the moon. One thing to remember is that this Arabic date may occur on different Gregorian date depending upon the region and country and obviously the moon.
If you are still not sure about the date then you can use our Arabic date converter.
The following is the conversion of the Gregorian date 2 August 2010 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Shaban 1431 AH to its equivalent Gregorian date.
وَلَا تَأْكُلُوا۟ مِمَّا لَمْ يُذْكَرِ ٱسْمُ ٱللَّهِ عَلَيْهِ وَإِنَّهُۥ لَفِسْقٌۭ ۗ وَإِنَّ ٱلشَّيَٰطِينَ لَيُوحُونَ إِلَىٰٓ أَوْلِيَآئِهِمْ لِيُجَٰدِلُوكُمْ ۖ وَإِنْ أَطَعْتُمُوهُمْ إِنَّكُمْ لَمُشْرِكُونَ
And eat not of that whereon Allah's name hath not been mentioned, for lo! it is abomination. Lo! the devils do inspire their minions to dispute with you. But if ye obey them, ye will be in truth idolaters.
Surah Al-An'aam(6:121)
Sahih al-Bukhari
Fighting for the Cause of Allah (Jihaad)
Chapter: If Al-Mushrikun take the property of a Muslim as war booty
Narrated Nafi' (ra):
A horse of Ibn 'Umar fled and the enemy took it. Then the Muslims conquered the enemy and the horse was returned to him during the lifetime of Allah's Messenger (ﷺ). And also, once a slave of Ibn 'Umar (ra) fled and joined the Byzantines, and when the Muslims conquered them, Khalid bin Al-Walid returned the slave to him after the death of the Prophet (ﷺ).
Sahih al-Bukhari 3067